Siemens Building Technology GMA121.1U Actuator 340793-762 protecting the motor and blower

protecting the motor and blower bearings

facilitating accurate water level monitoring without the nuisance tripping associated with shorter probes in high-sediment applications

ideal for systems with expansion valves or frequent cycling

significantly improving readability from a distance

The Johnson Controls V-3974-6009 Spring Kit is a direct-replacement service component engineered to maintain the calibrated performance of pneumatic valve actuators

Siemens Building Technology GMA121.1U Actuator 340793-762 protecting the motor and blowerThe Siemens GMA121. 1U is a heavy duty spring return damper actuator engineered for high demand HVACR applications requiring reliable fail safe operation. Operating on 24VAC DC, this direct coupled actuator delivers a robust 62 lb in torque (7 Nm), making it an ideal choice for managing return air, mixed air, and exhaust dampers in both constant and variable air volume systems. Built with a rugged, die cast aluminum NEMA 1 housing, this unit ensures